Duane R. Picht

📍 Chicago, IL: #5,168 of 13,327 inventorsTop 40%

🗺 Illinois: #34,584 of 84,256 inventorsTop 45%

Overall (All Time): #2,311,600 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5145221	Sliding latch lock	Ashley Pennebaker, Emerson J. Purkapile	1992-09-08
4820231	Mannequin device	Nancy L. Mikitka, Emerson J. Purkapile	1989-04-11